Home / 13,765.80-18,967.32-12,633.48

Finding the Fourth Proportional to 13,765.80, 18,967.32 and 12,633.48

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Solution

The fourth proportional to 13,765.80, 18,967.32 and 12,633.48 is: 17,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.80 : 18,967.32 = 12,633.48 : x
  2. Step 2: Convert to fraction form
    13,765.80/18,967.32 = 12,633.48/x
  3. Step 3: Cross multiply
    13,765.80x = 18,967.32 × 12,633.48
  4. Step 4: Simplify right side
    13,765.80x = 239,623,257.87
  5. Step 5: Solve for x
    x = 239,623,257.87/13,765.80
  6. Step 6: Final answer
    x = 17,407.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.